<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>登录页面</h1>
<div>
    <input type="text" placeholder="用户名" v-model="user.username">
    <input type="password" placeholder="密码" v-model="user.password">
    <input type="checkbox" v-model="user.rem">记住用户名和密码 <br>
    <input type="button" value="登录" @click="login()">
</div>

<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script>
    let v = new Vue({
        el: "body>div",
        data: {
            user: {username: "", password: "", rem: false}
        },
        methods: {
            login() {
                axios.post("/login", v.user).then(function (response) {
                    if (response.data == 1) {
                        alert("登录成功");
                        location.href = "/";
                    } else if (response.data == 2) {
                        alert("用户名不存在");
                    } else {
                        alert("密码错误");
                    }
                })
            }
        },
        created: function () {
            let arr = document.cookie.split(";");
            //遍历
            for (let cookie of arr) {
                let cookieArr = cookie.split("=");
                let name = cookieArr[0].trim();
                let value = cookieArr[1];
                if (name == "username") {
                    this.user.username = value;
                } else if (name == 'password') {
                    this.user.password = value;
                }
            }
        }
    })
</script>
</body>
</html>